JAKARTA - The National Disaster Management Agency (BNPB) is ready to install 20 units of early warning systems (EWS) or early warning system sensors for flash flood disasters in rivers in the Mount Marapi area, West Sumatra (West Sumatra).
Director of Disaster Mitigation of BNPB Berton Suar Pandjaitan said the river flow to be installed by EWS sensors in the Tanah Datar, Agam, and Padang Panjang Regencies.
"Currently the team is conducting a survey there looking for strategic points or locations to install 20 units of sensors and disaster mitigation signs," he said in Jakarta, Tuesday, June 11, which was confiscated by Antara. Based on the results of BNPB analysis, it is known that Agam Regency, Tanah Datar, and Padang Panjang City are areas prone to flash floods because they are directly intersecting with a number of rivers whose water flows originate on Mount Marapi. The volcano has erupted several times since the last few times.
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Data from BNPB, 62 residents in local districts and cities died due to flash floods with materials mixed with the results of volcanic activity of the volcano.
Berton assessed that various EWS system information is important for the community, so that they minimize the impact of the flood disaster if it happens again.
He said the potential impact of the disaster was still high. Based on the analysis of the team of geologists, around 700 thousand cubic meters of volcanic material settles in the peak area or slopes of Mount Marapi.
He explained that the dozens of EWS sensors that will be installed by BNPB are capable of measuring rainfall, river water level, and will be integrated with weather sensors installed by the Meteorology, Climatology and Geophysics Agency (BMKG) in three places around the slopes of Mount Marapi.
He explained about the device's work system. If the rain rains in the upstream area of the river so that the water flows rapidly and the volume of river water starts to increase, the EWS sensor will sound the siren. Sirine is a sign of danger so that people can then save themselves.
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